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sprinkles08, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 22801
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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C300: I was on the highway going near 80 miles ph. Then my

Customer Question

I was on the highway going near 80 miles ph. Then my c300 09 made a noise an it was not going no more I was pressing the gas but it only reved.i pulled over in the brake down .an called lights on dashboard. .never miss maintenance. But my engine did needed to be shimmed.what can this be?.
Submitted: 2 years ago.
Category: Mercedes
Expert:  sprinkles08 replied 2 years ago.
Hello and welcome to JustAnswer!
You could have a few things going on.
You could have a broken CV shaft or a failure in the rear differential. These wouldn't be that likely but possible. If you're unable to push the car while the trans is in park then the drivetrain is intact.
If the drivetrain is intact then the problem is either a mechanical failure in the transmission or it may be low enough on fluid that it can't engage. If the fluid level is ok then the trans would need to be disassembled for inspection to see exactly what has failed.
Customer: replied 2 years ago.
I just flushed fluids for tran.
Expert:  sprinkles08 replied 2 years ago.
The fluid level should definitely be checked to make sure it's full and a leak wasn't induced by the work that was done.
Customer: replied 2 years ago.
Ok.first thing Monday I am going to have it towed to dealership for a diagnosis.
Expert:  sprinkles08 replied 2 years ago.
Let me know if you need any more help!
Customer: replied 2 years ago.
Expert:  sprinkles08 replied 2 years ago.
Good luck!

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